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Measurement of Human Semicircular Canal Spatial Attitude

Located deep in the temporal bone, the semicircular canal is a subtle structure that requires a spatial coordinate system for measurement and observation. In this study, 55 semicircular canal and eyeball models were obtained by segmentation of MRI data. The spatial coordinate system was established...

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Autores principales: Wu, Shuzhi, Lin, Ping, Zheng, Yanyan, Zhou, Yifei, Liu, Zhaobang, Yang, Xiaokai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8498035/
https://www.ncbi.nlm.nih.gov/pubmed/34630312
http://dx.doi.org/10.3389/fneur.2021.741948
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author Wu, Shuzhi
Lin, Ping
Zheng, Yanyan
Zhou, Yifei
Liu, Zhaobang
Yang, Xiaokai
author_facet Wu, Shuzhi
Lin, Ping
Zheng, Yanyan
Zhou, Yifei
Liu, Zhaobang
Yang, Xiaokai
author_sort Wu, Shuzhi
collection PubMed
description Located deep in the temporal bone, the semicircular canal is a subtle structure that requires a spatial coordinate system for measurement and observation. In this study, 55 semicircular canal and eyeball models were obtained by segmentation of MRI data. The spatial coordinate system was established by taking the top of the common crus and the bottom of the eyeball as the horizontal plane. First, the plane equation was established according to the centerline of the semicircular canals. Then, according to the parameters of the plane equation, the plane normal vectors were obtained. Finally, the average unit normal vector of each semicircular canal plane was obtained by calculating the average value of the vectors. The standard normal vectors of the and left posterior semicircular canal, superior semicircular canal and lateral semicircular canal were [−0.651, 0.702, 0.287], [0.749, 0.577, 0.324], [−0.017, −0.299, 0.954], [0.660, 0.702, 0.266], [−0.739, 0.588, 0.329], [0.025, −0.279, 0.960]. The different angles for the different ways of calculating the standard normal vectors of the right and left posterior semicircular canal, superior semicircular canal and lateral semicircular canal were 0.011, 0.028, 0.008, 0.011, 0.024, and 0.006 degrees. The technology for measuring the semicircular canal spatial attitudes in this study are reliable, and the measurement results can guide vestibular function examinations and help with guiding the diagnosis and treatment of BPPV.
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spelling pubmed-84980352021-10-09 Measurement of Human Semicircular Canal Spatial Attitude Wu, Shuzhi Lin, Ping Zheng, Yanyan Zhou, Yifei Liu, Zhaobang Yang, Xiaokai Front Neurol Neurology Located deep in the temporal bone, the semicircular canal is a subtle structure that requires a spatial coordinate system for measurement and observation. In this study, 55 semicircular canal and eyeball models were obtained by segmentation of MRI data. The spatial coordinate system was established by taking the top of the common crus and the bottom of the eyeball as the horizontal plane. First, the plane equation was established according to the centerline of the semicircular canals. Then, according to the parameters of the plane equation, the plane normal vectors were obtained. Finally, the average unit normal vector of each semicircular canal plane was obtained by calculating the average value of the vectors. The standard normal vectors of the and left posterior semicircular canal, superior semicircular canal and lateral semicircular canal were [−0.651, 0.702, 0.287], [0.749, 0.577, 0.324], [−0.017, −0.299, 0.954], [0.660, 0.702, 0.266], [−0.739, 0.588, 0.329], [0.025, −0.279, 0.960]. The different angles for the different ways of calculating the standard normal vectors of the right and left posterior semicircular canal, superior semicircular canal and lateral semicircular canal were 0.011, 0.028, 0.008, 0.011, 0.024, and 0.006 degrees. The technology for measuring the semicircular canal spatial attitudes in this study are reliable, and the measurement results can guide vestibular function examinations and help with guiding the diagnosis and treatment of BPPV. Frontiers Media S.A. 2021-09-24 /pmc/articles/PMC8498035/ /pubmed/34630312 http://dx.doi.org/10.3389/fneur.2021.741948 Text en Copyright © 2021 Wu, Lin, Zheng, Zhou, Liu and Yang. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Neurology
Wu, Shuzhi
Lin, Ping
Zheng, Yanyan
Zhou, Yifei
Liu, Zhaobang
Yang, Xiaokai
Measurement of Human Semicircular Canal Spatial Attitude
title Measurement of Human Semicircular Canal Spatial Attitude
title_full Measurement of Human Semicircular Canal Spatial Attitude
title_fullStr Measurement of Human Semicircular Canal Spatial Attitude
title_full_unstemmed Measurement of Human Semicircular Canal Spatial Attitude
title_short Measurement of Human Semicircular Canal Spatial Attitude
title_sort measurement of human semicircular canal spatial attitude
topic Neurology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8498035/
https://www.ncbi.nlm.nih.gov/pubmed/34630312
http://dx.doi.org/10.3389/fneur.2021.741948
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